Harima Province and the Akamatsu Clan
──Overcoming the medieval "Akuto" (rebel) status to achieve "Shugo" (provincial governor) territorial rule and evolving into a governing power
──From Akuto to Shugo Daimyo: The transformation of the Harima warrior band
Political characteristics and the "distortion" of the Shoen (manorial) system
To understand Harima Province in the Middle Ages, one cannot ignore its geographical and political characteristics, as well as the dysfunction of the Shoen system that arose from them. Harima Province was located in close proximity to Kyoto, the center of politics and culture, reachable within a day by fast horse. This proximity led court nobles and major temples residing in Kyoto to position Harima as an "important base that must never be let go, no matter what." While management of local warriors tended to become nominal in distant provinces, strict control and assertions of rights by the lords were concentrated on Harima Province.
The dispute over the Hosokawa-no-sho in Harima Province symbolizes this intervention from the center. In the late Kamakura period, a muddy legal battle lasting about twenty years unfolded between Tamesuke and Tameyo, ancestors of the Reizei family, over the position of Jito (land steward) of the Hosokawa-no-sho. Although it was settled in 1313 with the granting of the Jito position to Tamesuke, as this case shows, land and interests in Harima Province were directly linked to power struggles at the center.
Furthermore, this tightening of control by the lords collided head-on with the demands of the local warrior bands and peasants who were growing in the region, exacerbating the contradictions of the Shoen system itself. The history of the Yano-no-sho, a To-ji temple estate representing Harima, was precisely a history of these contradictions and resistance. In the Yano-no-sho, which became a To-ji estate through a donation by the Retired Emperor Go-Uda in 1313, the Shoen lord To-ji clashed with local forces such as the temple official Terada Honen, who had effectively managed and developed the area, and the Jito of Naba-no-ura. The background to the statement in the "Fuso-ki" that "Akuto are rampant in Harima Province" (Akuto: those who ignore power and order, and run wild as they please) was the unique distortion of Harima, where local armed forces had no choice but to become "Akuto" who broke existing legal order to resist this central tightening.
The origins of the Akamatsu clan and the redefinition of "Akuto"
The Akamatsu clan, which would later become the Shugo Daimyo representing Harima, was an unknown entity whose name hardly appeared in the official records of the Kamakura Shogunate until Akamatsu Norimura (Enshin) suddenly raised an army during the Genko War. It is estimated that Enshin was born around 1277, and it is said that in his youth, he served as a Sho-kan (manorial official) for the Fujiwara Kujo family in Kyoto. This origin as a "Kujo family Sho-kan" is important. Enshin was not merely a "lawless person" of the mountains and fields, but possessed the aspect of an intellectual elite who was well-versed in the mechanisms of central Shoen administration at a practical level.

Here, a redefinition of the concept of "Akuto" in medieval history is necessary. In history education, "Akuto" is often misunderstood as "bad people who disturb public order," but in reality, they were nothing more than "emerging warrior forces who rejected the rule of existing Shoen lords and sought to control land and interests through their own strength." They denied the traditional donation order to protect the territories they had developed and commercial interests such as water transport. The Akamatsu clan, Kusunoki Masashige who held water rights in Kawachi Province, and Nawa Nagatoshi who built a massive fortune through water transport and shipping wholesalers on the Sea of Japan, were all representative figures of these emerging warriors, or Akuto.
The strength of the Akamatsu clan lay in the fact that they possessed both this ability as Akuto and the practical skills of a former Sho-kan. While acting as "Akuto" who eroded the existing Shoen system in the initial stages, they gradually organized their own military power and grew into a "warrior band that had graduated from being Akuto."
The military power of the Akamatsu army and the realism of "Akuto tactics"
What the official Gokenin (shogunal retainers) of the Kamakura Shogunate valued was one-on-one combat filled with formal beauty, where they would ride on horseback, announce their names, and clash. However, this style of combat did not work for Akuto warrior bands surviving in the struggle for land.
The army led by Akamatsu Enshin, like that of Kusunoki Masashige, utilized a pragmatic combat style called Ashigaru tactics. Their tactics were guerrilla warfare that disregarded honor, such as throwing stones or placing ambushes in thickets to stab enemies with bamboo spears. In the Battle of Mount Maya, it is recorded that against the Shogunate's large army attacking up the mountain, Akamatsu's soldiers hiding in the pine forest launched a surprise attack with bamboo spears from both sides, dealing a devastating blow.

The Akamatsu army was a loose coalition of armed local lords living in the valleys of the tributaries of the Chikusa and Ibo rivers, formed by the addition of former Kanto Gokenin like Minamoto no Yoritsura, who had fallen during the Jokyu War and were looking for a comeback. For them, combat was not a proof of honor, but a struggle for survival to protect their own rights by winning. Their "Akuto tactics," which lacked the aesthetics of one-on-one combat, brought mobility and thorough realism to the medieval battlefield, overwhelming the old-fashioned Kamakura warriors.
[Traditional Kamakura warrior bands - Akuto-style warrior bands represented by the Akamatsu clan]
Combat style - One-on-one combat on horseback - Thorough use of group warfare, surprise attacks, and Ashigaru tactics
Main armament - Bows and arrows, Tachi (long military swords) - Bamboo spears, stone throwing, melee weapons, irregular armaments
Organizational ties - Soryo system centered on blood relationships - Interest-based alliances of local lords in valleys, water transport operators, and former Gokenin
Principles of action - Loyalty to the Shogunate, honor of the family name, security of land - Resistance to the Shoen system, right to self-preservation, defense of substantial interests
Why did Enshin side with Emperor Go-Daigo: The rejection of the manor system and the 'interest representation' theory
In historical texts, Akamatsu Enshin is generally depicted as having participated in Emperor Go-Daigo's plan to overthrow the shogunate (the Genko War) as a loyalist from the very beginning. However, a close examination of primary sources reveals that his principles of action were based on much colder calculations.

In December of the second year of Genko (1332), Enshin, as part of the Rokuhara Tandai's forces, teamed up with Utsunomiya Kimitsuna to defeat Prince Morinaga's troops at Nincho-ji Temple. This fact is clearly recorded in the 'Kongo-shu Uragaki' written on the back of the Diamond Sutra at Kongo-ji Temple, and there is no doubt that Enshin initially participated in the siege of Chihaya Castle and other battles as a general of the shogunate army. However, upon assessing the disorganized state of the shogunate army on the battlefield and concluding that 'this shogunate cannot defeat Kusunoki Masashige; its days are numbered,' Enshin raised a banner of revolt at Kokenawa Castle on January 21, 1333, claiming to have received an imperial decree from Prince Morinaga.

The essential motive for Enshin's move to overthrow the shogunate was not a fanatical loyalty to the courtier-style Kenmu regime, but rather the 'rejection of the manor system' that had long plagued the warriors of medieval Harima. It is believed that Enshin's true desire was to abolish the harsh exploitation by manor lords and establish a samurai feudal society where land would be the complete property (territory) of the warriors. Enshin's handwriting, characterized by sharp, upward-sloping 'Song-dynasty style' characters similar to those of Emperor Go-Daigo and Ashikaga Takauji, indicates that he possessed a high level of education. With such intellect, Enshin stood up not as a partisan of the Emperor or the shogunate, but as a 'representative of the Harima warrior band,' voicing the demand for 'stable territorial control' held by the warriors of Harima.
Symbolic evidence of this is the order issued to the Azumi clan on September 26, 1333. Enshin, having become the Governor of Harima (Shugo), ordered the Azumi clan, land stewards (jito) of Shiso District, to cut timber for the construction of the Nijo-dono Council Office. The background to how a man in his 50s, who had been unknown in a corner of western Harima, rose to a position where he could issue orders to land stewards throughout the province, lies in the structure where local warriors supported Enshin as a leader who would destroy the shackles of the manor system.
The medieval continuity of 'from Akuto to Shugo' and the mechanism of power acquisition
The movement to overthrow the shogunate, which began with Akamatsu Enshin's uprising at Kokenawa Castle, progressed rapidly through geographical strategy: gathering troops at Tai-san-ji Temple in Harima, capturing Takada Castle and Mitsuishi Castle, and securing the Funasaka Pass. The Akamatsu army cornered the Rokuhara forces near Lake Biwa, annihilated them, and became the pioneers of the conquest of Kyoto.
After the end of this rebellion, Enshin was appointed Shugo of Harima. This demonstrates the dynamic fluidity inherent in medieval society. An armed force that had been denounced by manor lords as 'akuto' (rebels/villains) and targets for suppression until yesterday, had by the next day acquired the state-sanctioned power of maintaining public order known as 'Shugo'.
This dramatic shift proves that 'akuto' and 'samurai (Shugo)' were not disconnected entities, but possessed continuity. By organizing into armed groups and achieving political victory, the akuto 'slid' their own violence into legitimate state power (the Shugo position). Using the authority of this Shugo position, the Akamatsu clan took on the role of officially controlling and protecting their former 'akuto' comrades and local landholders.
'Enshin the Founder' and 'Norisuke the Manager': Political maneuvering to survive the Kanno Disturbance
In contrast to Akamatsu Enshin, who made a name for himself as the first head of the Akamatsu clan through the defense of Shirahata Castle and the overthrow of the shogunate, it was his third son, Akamatsu Norisuke (Myozen), who actually solidified the foundation of the 'prestigious Shugo Akamatsu family'.

Norisuke was a man of formidable martial prowess who entered Enryaku-ji Temple on Mount Hiei in his youth, called himself 'Risshi Myozen,' and fought in battles in Kumano, Totsukawa, and Yoshino Castle as a close aide to Prince Morinaga, the head of the Tendai sect. The classic 'Taiheiki' vividly depicts his heroic exploits, such as riding alone into the swollen Katsura River to be the first to break into the enemy camp. While Norisuke was, so to speak, a field-hardened warrior, he also possessed a high level of education that allowed him to navigate central courtier politics and the religious world.
The 'Kanno Disturbance' (a state of chaos where order is disrupted or normal conditions are hindered and become unstable), which broke out around the time of Enshin's death (1350), became a major upheaval that completely split the Muromachi Shogunate, centered on the conflict between Shogun Ashikaga Takauji and his younger brother Tadayoshi. During this disturbance, Norisuke, who succeeded to the head of the family after his eldest brother Norisuke died of illness, displayed shrewd maneuvering. During the siege of Takino Castle, he showed flexibility by avoiding an active attack and retreating to Shirahata Castle, out of consideration for the fact that his subordinate, the Harima local Azumi clan, was holed up inside the castle. Furthermore, Norisuke acted in concert with his wife's father, Sasaki Doyo, to surrender to the Southern Court, and by welcoming Prince Noriyoshi (Akamatsu-no-Miya), the son of Prince Morinaga, to Harima, he even plotted to build an independent 'fourth force' amidst the tripartite division of the realm.
Later, sensing danger in the Southern Court's rapid movement to recover Kyoto, Norisuke sent Akamatsu-no-Miya back to Yoshino and made a brilliant turnabout by participating in the attack on Hachiman in response to Yoshiakira's summons. Furthermore, he raised Shogun Yoshiakira's heir, Haru-o-maru (the later 3rd Shogun Ashikaga Yoshimitsu), at Shirahata Castle in Harima for five years starting from the age of three, and mobilized his retainers to welcome him with the 'Akamatsu-bayashi' music, forming a deep, personal bond (tie) with the Shogun's family that would never be broken for the rest of his life.
The assessment that 'Enshin was the founder, and Norisuke was the manager' is appropriate. Norisuke sublimated the position of Shugo that Enshin had forced open with sheer strength into a path toward the highest executive level of the shogunate (the Four Posts) through diplomatic tactics that turned the crisis of the Kanno Disturbance to his advantage, and through private closeness to the Shogun's family.
Akamatsu Head Family (Shugo) -Kyoto residence (permanent), Harima Shirahata Castle, Shiroyama Castle - Lobbying in central politics via resident magistrates in Kyoto, Director of the Board of Retainers (Four Posts)
Shugo Deputy (Uno clan, Akamatsu Shimotsuke Nyudo) -Iwami Shugo Deputy Office, Hirose Shugo Deputy Office - Deployment of resident magistrates in the province, military command authority, requisition of provisions and laborers
Provincial Government Deputy (Ogawa clan) -Sakamoto Provincial Government Office - Imposition of Tansen (temporary taxes), control of manors and commerce.
Kokujin (local lords) -Developed territories in various regions (such as Yano Manor) - Local rule as independent self-employed business owners, military service to the Shugo.
A Symbiotic System for Vassalizing the "Kokujin": The Integration of Independent Business Owners
What was promoted from the later years of Norisuke to the era of Yoshinori was the organization of the "Kokujin," the local lords entrenched within Harima Province. It is a mistake to equate the "Kokujin" of the medieval period with the "vassals (salaryman samurai living in castle towns)" of the Edo period.
The Kokujin of the Muromachi period were, so to speak, "independent business owners" who effectively controlled their home territories through military force. They were highly autonomous, and even the Shugo could not directly control their lands or people. The Akamatsu clan did not use violent suppression against these former "Akuto"-like Kokujin, but instead offered a mutually contractual master-servant relationship known as "Hikan" (vassalage).
The reason the Kokujin followed the Akamatsu clan was to enhance the legitimacy of their own local rule and to gain an advantage in conflicts with neighboring territories by using the authority of the Shugo, which was "endorsed by the Shogunate." On the other hand, the Akamatsu clan, as Shugo, also needed to remain key figures in central politics (the Three Kanrei and Four Shiki) in order to attract more Kokujin (vassals).
Furthermore, during this era, in the rural areas of Harima, farmers frequently engaged in "Sho-ke no Ikki" (manorial uprisings), strengthening their autonomous unity within villages and manors. In the Harima peasant uprising of Eikyo 1 (1429), it is recorded that farmers rose up, shouting, "Samurai, get out of the province!" Facing such intense pressure from below, the ruling Kokujin and the Shugo Akamatsu clan had no choice but to unite for survival. This symbiotic system (vassalization) that brought the Kokujin together into a community of fate called the "Harima Samurai Band" was a major social innovation that transformed the regime from a mere violent group into a "Shugo-led territorial state."
The Economic Foundation of the Akamatsu Kingdom: Timber, Mines, and Gold Coins
Why was the Akamatsu clan able to independently fund the construction of the Nijo-dono Council Hall in Kyoto and provide the capital to build massive temples such as Daitoku-ji (founded for Daito Kokushi, the nephew of Enshin)? The background to this was a vast economic foundation that overwhelmed other Shugo daimyo.
Water Transport and Timber Rights -Controlled the transport capacity of the Chikusa and Ibo Rivers. They transported high-quality forest resources from the upper reaches (such as Shiso District) to Kyoto via rafts and Takase boats, reaping huge profits from special demand in urban development.
Gold Coin Minting -Minted the "Akamatsu Gold Coin (imprinted with a circle and the character for red)," considered the oldest circulating gold coin in Japan (used for rewards). They pioneered the monopoly of currency and control of mines.
Control of Copper and Iron Mines -Mastered the production of copper products, represented by the "Oji-o Mirror," and the Harima specialty "Chikusa Iron." They linked military power with commerce.
Support for Famous Temples -Acquired advanced culture and high credibility through the founding and restoration of major temples such as Zuiko-ji, Horin-ji, Un-un-ji (founded by Sekison Tomobai), and Ruri-ji.
It is speculated that the assets of Akamatsu Enshin reached a value equivalent to 10 billion yen in modern terms. By controlling the water transport network through the Chikusa and Ibo Rivers and distributing timber and various minerals, the Akamatsu clan also monopolized customs duties and tribute money at the distribution stage. The episode where Akamatsu Mitsusuke was able to order 200 Bizen Osafune swords at once during the Kakitsu Incident is proof that they controlled weapon raw materials like Chikusa iron and had strong economic pipelines to cutting-edge workshops.
Why Could Harima Become the "Akamatsu Kingdom"?: The Governance Integration System of the Yoshinori Era
The ruling structure of the Akamatsu family, built by Enshin and Norisuke, reached its peak during the 56-year long reign of Akamatsu Yoshinori, and a de facto "Akamatsu Kingdom" was born.
While residing in his Kyoto mansion, Yoshinori constructed a rare bureaucratic governance system that integrated the Shugo-dai (deputy Shugo) with the "Kokuga (provincial government) mechanism" that had existed since ancient times. Even after the Northern and Southern Courts period, the Harima Provincial Government retained the "right to impose taxes on the entire province of Harima" and the remnants of public administrative governance (the leftovers or useless vestiges remaining after something has ended). Yoshinori incorporated the Ogawa clan, the practical officials of this provincial government, into his own vassals and appointed them as "Mokudai" (deputies), the representatives of the provincial government.
The Ogawa clan set up an office in Sakamoto, Himeji, and under the command of the Akamatsu clan, carried out the collection of "Tansen (temporary taxes on rice fields)" and commercial control. Meanwhile, the Shugo-dai (the Uno clan and Akamatsu Shimotsuke Nyudo) were stationed at the Shugo-dai offices in Hirose and Iwami, leading the district officials of each county and focusing on military affairs, public security maintenance, and the conscription of laborers.
This efficient dual rule by the "Mokudai (civil administration/tax collection)" and the "Shugo-dai (military affairs)" perfectly unified the legitimacy held by the traditional Kokuga (the government office where officials called Kokushi conducted local politics—administration, justice, tax affairs, etc.—from ancient to medieval times) with the violent rule of the Akamatsu clan, the emerging samurai, and sublimated it into a state organization (Shugo territorial system) that controlled the entire province of Harima almost without gaps.
The Kakitsu Incident and the Historical Inevitability of Gekokujo (the low overcoming the high)
However, the prosperity of this 'Akamatsu Kingdom' was a castle in the air, built upon the delicate balance of 'give and take' between the Shogunate and the Shugo daimyo, as well as between the Shugo and the local kokujin (landholders).
In 1427, upon the death of Yoshinori, the fourth Shogun, Ashikaga Yoshimochi, refused to recognize the succession of Mitsusuke, the head of the Akamatsu clan. He confiscated the position of Shugo of Harima and attempted to grant it to Mochisada of the Akamatsu cadet branch (the Kasai family). Enraged, Mitsusuke returned to Harima, stockpiled provisions at Shirahata Castle and Jōyama Castle, and prepared for a total war. Although Mitsusuke was pardoned after Mochisada fell from grace and committed suicide due to an affair with a concubine, this incident exposed the depth of the rift with the cadet branch and the fragility of the Shugo-territorial system, which could be dismantled at the whim of the Shogun.

Subsequently, the sixth Shogun, Ashikaga Yoshinori, initiated a 'reign of terror' to enhance the Shogun's autocratic power. Yoshinori purged the Three Kanrei and Four Shoku families one after another and applied similar pressure on Mitsusuke. In a state of extreme mental distress, described in the 'Kanmon Nikki' as 'walking on thin ice, terrifying beyond measure,' Mitsusuke, in order to ensure his own survival, committed an unprecedented act of violence in Japanese history on June 24, 1441 (the Kakitsu Incident): he assassinated Shogun Yoshinori, whom he had invited to his residence for a banquet.
After fleeing to Harima with the Shogun's head, Mitsusuke attempted to create a political stalemate similar to the earlier Kanno Disturbance by welcoming Yoshitaka (a grandson of Ashikaga Tadafuyu who had returned to secular life) to Jōkō-ji Temple in Sakamoto as his figurehead. However, the kokujin (vassals) who were supposed to have supported the 'Akamatsu Kingdom' together saw the signs of defeat in Mitsusuke, now an assassin, and most of them abandoned the Akamatsu clan one after another as the Yamana forces and the Shogunate's punitive army approached.
On September 10, Jōyama Castle was surrounded by an overwhelming army led by Yamana Sōzen, and Mitsusuke committed ritual suicide at the age of 69.
The Akamatsu clan's rule collapsed here for the time being. The bond between the Akamatsu clan and the Harima warrior band, which had once begun as an 'akutō (rebel) community' standing against manor lords, had transformed into a bureaucratic relationship based solely on mutual interests during the process of becoming a highly organized state power known as a Shugo-territorial state. As a result, once the Akamatsu clan lost its political advantage, the kokujin, who were essentially self-employed, abandoned their lord and switched to other families to protect their own homes and lands.
Later, although Akamatsu Masanori revived the Akamatsu family as a fierce general of the Eastern Army during the Ōnin War, the actual power had already been seized by the Uragami clan, the Shugo-dai, and eventually, the Uragami clan itself would be destroyed by the rising Ukita clan (the darlings of gekokujō). The trajectory of the Akamatsu clan, which began as rebels, organized a warrior band, became Shugo, and grew into a de facto 'state,' conveys to the present day the intense energy of gekokujō and its structural limitations that were born in the land of medieval Harima.
This content was created based on Gemini through repeated dialogue with the contributor.
If you have read this article, please click the 'Like' button as a memento of your visit; it would be very encouraging.
Also, if you enjoyed the content of this article, I would be very happy if you followed me, as I plan to write more history-related articles like this one.
